Chocolatewolfy
Every human is assigned an angle and a demon. It has always been like that.When a person dies they become the angle or demon to a new child, between the ages of 5-10. If they fail at their job, they are sent to the after life. If they make a success of it, they can chose it continue.
Moon died hundreds of years ago, after which she became the demon of a human being. She succeed to do her job and went from human to human, life to life. Until she is assigned to a boy named Silver. Something about him was different than any other person she had before, she can't seem to harm him.
Across the hall, the demon to Star, Silver's sister, is Sona. She is having the same problem, she has no power over Star. Her being another powerful, respected demon, this is embarrassing. She even wants to help Star some times.
Will they be successful or will they die trying?